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Is PROPRIETARY a valid Scrabble word?

Yes, PROPRIETARY is a valid word in US Scrabble and UK Scrabble, worth 18 points.

Base score before bonus squares; blank tiles score zero.

What does PROPRIETARY mean?

  1. noun

    an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits

  2. adjective

    protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights

    “`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form”

Definitions from WordNet 3.1, Princeton University.

Points

Scrabble
18
Words With Friends
19
Letters
11

P (3) + R (1) + O (1) + P (3) + R (1) + I (1) + E (1) + T (1) + A (1) + R (1) + Y (4) = 18 points in Scrabble.

Dictionary status

  • Scrabble (US & Canada)Valid
  • Scrabble (UK & worldwide)Valid
  • Words With FriendsListed

Scrabble lists: NWL2023 (US & Canada) and CSW24 (UK & worldwide). WWF uses our ENABLE reference plus verified additions. “Listed” and “Not listed” describe that reference; check acceptance in the game. Sources reviewed 2026-10-03.

Hooks for PROPRIETARY

PROPRIETARY has no one-letter front or back hooks in US Scrabble. Adding a single letter to either end does not make another word in that list.

Front hooks0

None. Nothing can be added to the front.

Back hooks0

None. Nothing can be added to the end.

Words you can make from PROPRIETARY

The 60 highest-scoring words using these letters.

Study PROPRIETARY and related words

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